It more than just the Schumann's Resonance, if your interested in the science, which it sounds like you are, check out (if you haven't already):
SuspiciousObservers Youtube

Now regarding the galactic cosmic rays(GCR), these are very high frequency/energy/light, they pass through/misses most matter, but does when it does interact with free ions in the atmosphere, it resulting in cloud formation. From my research and memory, it is not linked to the Schumann's Resonance which is linked to Magnetic interactions and ULF and ELF 0.1-30Hz.
The theories i have come across is that DNA has quantum components to it, of which interact with all frequencies. GCR are the newest energetic frequencies that are being studied, its also come to sciences attention that there has almost been and exponential increase in the amount that is coming from the center of the galaxy, and maybe the rest of the universe...

We are sort of on the cutting edge of this science (that of which has been disclosed) and we are still developing our understanding.